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http://hdl.handle.net/11375/19091
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DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Ng, Eu-Gene | - |
dc.contributor.author | Wang, Keyan | - |
dc.date.accessioned | 2016-04-15T18:32:09Z | - |
dc.date.available | 2016-04-15T18:32:09Z | - |
dc.date.issued | 2016 | - |
dc.identifier.uri | http://hdl.handle.net/11375/19091 | - |
dc.description.abstract | The finite element analysis (FEA) is a numerical method widely used to predict the metal-cutting performance in both academic and industrial studies, avoiding the high expense and time consumption of experimental methods. The problem is how to calibrate reliable fracture-parameters as chip-separation criterion are implemented into FEA modelling. This thesis introduces a calibration method of the Johnson-Cook fracture parameters used in the orthogonal metal cutting modelling with a positive rake angle for AISI 1045 steel. These fracture parameters were obtained based on a set of quasi-static tensile tests, with smooth and pre-notched round bars at room temperature and elevated temperatures. The fracture parameters were validated by low- and high-strain rate simulations corresponding to tensile tests and orthogonal metal-cutting processes respectively in ABAQUS/Explicit. Compared to literature calibration methods, this method is simpler, less expensive but valid. | en_US |
dc.language.iso | en | en_US |
dc.subject | Calibration methods | en_US |
dc.subject | Johnson-Cook fracture parameters | en_US |
dc.title | CALIBRATION OF THE JOHNSON-COOK FAILURE PARAMETERS AS THE CHIP SEPARATION CRITERION IN THE MODELLING OF THE ORTHOGONAL METAL CUTTING PROCESS | en_US |
dc.type | Thesis | en_US |
dc.contributor.department | Mechanical Engineering | en_US |
dc.description.degreetype | Thesis | en_US |
dc.description.degree | Master of Applied Science (MASc) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Wang_Keyan_2016April_Master's of Applied Science.pdf | Main article | 4.36 MB | Adobe PDF | View/Open |
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